Radio Valve Data: 1915-1960

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Radio Valve Data: 1915-1960

Keith R Thrower OBE, The Valve Museum, April, 2022.

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Help information: Abbreviations - Explanations - Notes.

Post-1925 amplifying valves, frequency changers and signal diodes
Type	Description	Filament		Anode		Auxillary Grid		Grid	r_a	g_m/g_o	R_L	P_o	R_k	Base^{(1)Pin-out details for non-exhibits can be found with the base details.}		Year
		Volts	Amps	Volts	mA	Volts	mA	-V	kΩ	mA/V	kΩ	Watts	Ω	Type	Ref
Brimar
Note: for Loctal B8G read B8B, USS & USM = UX, Y8A = Footless
1A4E	VM RF pentode	2.0*	0.06	135	2.2	67.5	0.9	3.0	1M	0.65				USS4+tc	2	1940
1A5EG, 1A5G/GT	Output pentode	1.4*	0.05	90	4.0	90	0.8	4.5	300.0	0.85	25.0	0.117		IO	78	1940
1A6	Heptode FC	2.0*	0.06	mix135 osc135	1.8 2.0	67.5 -	2.1 -	3.0	400.0 20.0	0.27⅄				USS6+tc	1	1940
1A7EG, 1A7-G/-GT	Heptode FC	1.4*	0.05	mix90 osc90	0.55 1.2	90 -	0.6	0	600.0	0.25⅄				IO	76	1940
1AB6/DK96	Heptode FC	1.4*	0.025	mix85 osc85	0.6	68	0.8	0 0	800	0.3⅄0.60				B7G	54
1AC6/DK92	Heptode FC	1.4*	0.05	mix85 osc30	0.7 1.6	60	0.15		650.0	0.325⅄				B7G	54
1AH5/DAF96	Diode pentode	1.4*	0.025	67.5	0.17	67.5	0.055	1.5		0.17				B7G	65
1T4/DF91	VM RF pentode	1.4*	0.025	85.0	1.65	64.0	0.55	0	1M	0.85				B7G	64
1C5EG, 1C5G/GT	Output pentode	1.4*	0.10	90	7.5	90	1.6	7.5	115.0	1.55	8.0	0.24		IO	78	1940
1C6	Heptode FC	2.0*	0.12	mix135 osc135	1.3 3.1	67.5	2.5	3.0	600.0 20.0	0.30⅄				USS6+tc	1	1940
1H5-G/-GT	Single diode triode	1.4*	0.05	90	0.15	-	-	0	240.0	0.27				IO	91	1940
1L4	RF pentode	1.4*	0.05	90	4.5	90	2.0	O	350.0	1.03				B7G	2
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
1LA4E	Output pentode	1.4*	0.05	90	4.0	90	0.8	4.5	300.0	0.85	25.0	0.117		B8G	27	1940
1LA6E	Heptode FC	1.4*	0.05	mix90 osc90	0.55 1.2	90 -	0.6 -	0	600.0	0.25⅄				B8G	29	1940
1LD5	Single diode pentode	1.4*	0.05	90	0.6	45	0.1	0	750.0	0.57				B8G	31
1LH4	Single diode triode	1.4*	0.05	90	0.15	-	-	0	240.0	0.27				B8G	26	1940
1LN5E	RF pentode	1.4*	0.05	90	1.6	90	0.35	0	1.1M	0.80				B8G	28	1940
1N5-G/-GT	RF pentode	1.4*	0.05	90	1.2	90	0.30	0	1.5M	0.75				IO	77	40s
1Q5-G/-GT	Output beam tetrode	1.4*	0.10	90	9.5	90	1.3	4.5	75.0	2.20	8.0	0.27		IO	78	1940
1R5	Heptode FC	1.4*	0.05	90	1.6	67.5	3.2	0	600.0	0.30⅄				B7G	3	'40s
1S4	Output beam tetrode	1.4*	0.10	90	7.4	67.5	1.4	7.0	100.0	1.57	8.0	0.27		B7G	4	'40s
1S5	Diode and AF pentode	1.4*	0.05	90	2.7	90	0.5	0	500.0	0.72				B7G	5	'40s
1T4	VM RF pentode	1.4*	0.05	90	3.5	67.5	1.4	0/16	500.0	0.90				B7G	2	'40s
1U5	Diode pentode	1.4*	0.05	90	2.7	90	0.5	0	500.0	0.72				B7G	15
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
2A3	Output triode	2.5*	2.50	250	40.0	-	-	45.0	800Ω	5.20	2.5	3.5	750	USM4	1
2A5	Output pentode	2.5	1.75	250	34.0	250	6.5	16.5	80.0	2.50	7.0	3.2	400	USM6	8
3A5 = DCC90	Double triode	1.4*	0.22*	90	3.7	-	-	2.5	8.333	1.80				B7G	8
3D6	Output beam tetrode	1.4*	0.22*	135	9.8	90	1.2	4.5	150.0	2.40	12.0	0.5		B8G	32	40s
3Q4	Output beam tetrode	1.4*	0.10	90	9.5	90	2.0	4.5	100.0	2.15	10.0	0.27		B7G	6
3Q5-G/-GT	Output beam tetrode	1.4*	0.10*	90	9.5	90	1.3	4.5	90.0	2.20	8.0	0.27		IO	87	1940
3S4	Output beam tetrode	1.4*	0.10*	90	6.1	67.5	1.1	7.0	100.0	1.42	8.0	0.23		B7G	6	40s
3V4	Output beam tetrode	1.4*	0.10*	90	9.5	90	2.1	4.5	100.0	2.15	10.0	0.27		B7G	9
4CM4/PC86	UHF triode	3.8	0.30	175	12.0	-	-	1.5	4.85	14.0				B9A	74
4D1	General-purpose triode	13.0	0.20	250	10.0	-	-	3.0	10.0	4.00				B7+tc	23	1936
4DL4/PC88	UHF triode	3.8	0.30	160	12.5	-	-	1.25	4.8	13.5				B9A	75
4FY5/PC97	VHF triode	4.5	0.30	135	11.0	-	-	1.0	5.0	13.0				B7G	79
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
6A3	Output triode	6.3*	1.00	250	60.0	-	-	45.0	800Ω	5.25	2.5	3.5	750	UMS4	1	1940
6A6 (see 6N7G)	Class B double triode	6.3	0.80											USM7	5
6A7, 6A7E	Heptode FC	6.3	0.30	mix250 osc250	3.5 4.0	100 -	2.7 -	3.0	360.0 20.0	0.55⅄			300	UMS7+tc	1	1937
6A8-G/-GT	Heptode FC	6.3	0.30	mix250 osc250	3.5 4.0	100 -	2.7 -	3.0	360.0 20.0	0.55⅄			300	IO	1	1937
6AB8/ECL80	AF triode & output pentode	6.3	0.30	t100 p200	4.0 17.5	- 200	- 3.5	2.3 8.0	12.5 150.0	1.4 3.3				B9A	13
6AF4A	UHF oscillator triode	6.3	0.225	100	20.0	-	-				2.13	7.50	150	B7G	60
6AG6-G	Output pentode	6.3	1.20	250	32.0	250	6.0	6.0	60.0	10.00	9.0	3.75	150	IO	36	1940
6AJ8/ECH81	Triode heptode FC	6.3	0.30	h250 t100	3.25 4.5	103	6.7	2.0	1M	0.75⅄				B9A	24
6AK5	VHF pentode	6.3	0.175	180	7.7	120	2.4	4.5	500.0	5.10			100	B7G	14
6AK6	Output pentode	6.3	0.15	180	15.0	180	2.5	9.0	200.0	2.30	10.0	1.1	520	B7G	16
6AK8/EABC80	Triple diode triode	6.3	0.45	250	1.0	-	-	3.0	58.0	1.20				B9A	2
6AL5 (5726 SQ)	Double diode	6.3	0.30	150	9.0	-	-	-	-	-				B7G	18
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
6AM4	Grounded grid triode	6.3	0.225	200	10.0	-	-	6.5	8.70	9.80			100	B9A	38
6AM5	Output pentode	6.3	0.20	250	16.0	250	2.4	13.5	150.0	2.60	16.0	1.6	680	B7G	25
6AM6/8D3/EF91 (6064 SQ)	High-slope VHF pentode	6.3	0.30	250	10.0	250	2.6	2.0	1.0M	7.50			160	B7G	21
6AQ5	Output beam tetrode	6.3	0.45	250	45.0	250	4.5	12.5	52.0	4.20	5.0	4.5	240	B7G	27
6AQ8/ECC85	Double triode	6.3	0.435	250	10.0	-	-	2.0	9.7	6.0				B9A	39
6AS7-G	Double triode series regulator	6.3	2.50	100	100.0	-	-		0.28	6.5			300	IO	26
6AT6/EBC90	Double diode triode	6.3	0.30	250	1.0	-	-	3.0	58.0	1.20				B7G	19
6AU6/EF94	RF pentode	6.3	0.30	250	7.6	125	3.0	1.0	1.5M	4.40			100	B7G	16
6AV6	Double diode triode	6.3	0.30	250	1.20	-	-	2.0	62.5	1.60	62.5			B7G	19
6B4-G	Output triode (DH)	6.3*	1.00	250	60.0	-	-	45.0	800Ω	5.25	2.5	3.5	750	IO	81	1940
6B5	Triode/direct coupled output triode	6.3	0.80	t300 ot300	9.0 42.0	- -	- -	0 int. to k	24.0	2.40	7.0	4.0		USM6	5	1937
6B6-G	Double diode triode	6.3	0.30	250	0.9	-	-	2.0	91.0	1.10				IO+tc	29	1940
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
6B7, 6B7E	Double diode pentode	6.3	0.30	250	9.0	125	2.3	3.0	600.0	1.12			250	USS7+tc	2	1937
6B8EG	Double diode & semi-VM RF or AF pentode	6.3	0.30	250	7.5	125	2.1	3.0	550.0	1.30				IO+tc	15	1940
6B8-G/-GT	Double diode & semi-VM RF or AF pentode	6.3	0.30	250	9.0	125	2.3	3/21	600.0	1.12				IO+tc	15
6B8S-G	Double diode and VM RF pentode	6.3	0.30	250	6.5	100	1.4	3/40	800.0	1.00				IO+tc	15	1940
6BA6, 5749 (SQ)	VM RF pentode	6.3	0.30	250	11.0	100	4.2	1/21	1.5M	4.50			68	B7G	16
6BE6	Heptode FC	6.3	0.30	250	3.0	100	7.1	1.5/30	1.0M	0.475⅄				B7G	29
6BG6-G	Line T/B output tetrode	6.3	0.90	300	60.0	250	4.0	18.0	30.0	6.00				IO	39
6BH6	RF pentode	6.3	0.15	250	7.4	150	2.9	1.0	1.4M	4.60			100	B7G	32
6BJ6	VM RF pentode	6.3	0.15	250	9.2	100	3.3	1/20	1.3M	3.80			82	B7G	32
6BK4	EHT voltage regulator	6.3	0.20	25Kv	1.5	-	-	125						IO	130
6BM8/ECL82	AF triode & output pentode	6.3	0.78	p250 t100	28.0 3.5	250	5.7	22.5	25.0	9.5 25.0	9.0	3.4	680	B9A	37
6BQ5/EL84	Output pentode	6.3	0.76	250	48.0	250	5.5	7.3	38.0	11.0	5.2	5.7	135	B9A	16
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
6BQ7A	Double triode	6.3	0.40	150	9.0	-	-	10.0	6.2	6.4			220	B9A	39
6BR7/8D5	6059 (SQ) Low microphony AF pentode	6.3	0.15	250	2.1	100	0.6	3.0	2.3M	1.25				B9A	35
6BR8	Triode & pentode for AF	6.3	0.45	t100 p250	1.26 10.0	110	3.5		20.0 400.0	1.2 5.2		2760		B9A	67
6BS7	Low microphony AF pentode	6.3	0.15	250	2.1	100	0.6	3.0	2.3M	1.25				B9A	35
6BW6	Beam tetrode Class A SE Class AB PP	6.3	0.45	250 285	47.0 70.0	250 285	5.0 4.0		52.0	4.1	5.0 8.0	4.5 12.0	240 260	B9A	19
6BW7	VHF pentode	6.3	0.3	250	9.5	250	3.5		750.0	8.5			180	B9A	10
6BX6/EF80	High slope RF pentode	6.3	0.30	170	10.0	170	2.5	2.0	400.0	7.4				B9A	10
6C4 (6100 SQ)	VHF power triode	6.3	0.15	250	10.5			8.5	7.7	2.2				B7G	15
6C5G	General-purpose triode	6.3	0.30	250	8.0	-	-	8.0	10.0	2.00				IO	20	1937
6C6	RF pentode	6.3	0.30	250	2.0	100	0.5	3.0	1M	1.20				USS6	2	1937
6C8-G	Double triode	6.3	0.30	250	3.2	-	-	0	22.5	1.60				IO+tc	28
6CD6-G	Line timebase output beam tetrode	6.3	2.50	200	64.0	150	3.0	30.0		6.70				IO+tc	39	1940s
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
6CH6 (6132 SQ)	Video output pentode	6.3	0.75	250	40.0	250	6.0	4.5	50.0	11.0				B9A	19
6CL6	Video power pentode	6.3	0.65	250	30.0	150		3.0		11.0	7.5	2.8		B9A	84
6CM4/EC86	UHF triode	6.3	0.20	175	12.0	-	-	1.5	4.85	14.0				B9A	74
6CW7/ECC84	Double triode	6.3	0.33	90	12.0	-	-	1.5	4.0	6.0				B9A	28
6D6	VM RF pentode	6.3	0.30	250	8.2	100	2.0	3.0	800.0	1.60				USS6+tc	2	1937
6DA6/EF89	VM RF pentode	6.3	0.20	250	9.0	85	3.2	1.0	Ω800.0	4.0				B9A	36
6DJ8/ECC88	VHF double triode	6.3	0.365	90	15.0	-	-	1.3	2.6	12.5				B9A	39
6DL4/EC88	UHF triode	6.3	0.165	160	12.5	-	-	1.25	48.0	13.5				B9A	75
6DX8/ECL84	AF triode & output pentode	6.3	0.72	p220 t200	18.0 3.0	220	3.0	3.4 1.7	150.0 16.2	10.0 4.0		4.0		B9A	53
6EH7/EF183	High-slope VM RF pentode	6.3	0.30	190	12.0	90	4.5	2.0	500.0	18.0				B9A	10
6EJ7/EF184	High-slope RF pentode	6.3	0.30	200	10.0	200	3.8	2.5	350.0	15.0				B9A	10
6F5, 6F5-G	High-μ triode	6.3	0.30	250	0.9	-	-	2.0	66.0	1.50				IO+tc	18	1940
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
6F6EG	Output pentode	6.3	0.70	250	32.0	250	6.2	16.5	80.0	2.25	7.0	3.5	410	IO	36	1940
6F6-G	Output pentode	6.3	0.70	285	38.0	285	7.0	20.0	78.0	2.55	7.0	4.8	440	IO	36	1937
6F7, 6F7B, 6F7E	AF triode and pentode	6.3	0.30	t100 p250	3.5 6.5	- 100	- 1.5	3.0 3.0	30.0 850.0	1.05 1.10				USS7+tc	13	1940
6G6-G	Output pentode	6.3	0.15	180	15.0	180		9.0		2.3	10.0	1.1		IO	36
6GA8/ECC804	Double triode	6.3	0.30	200	10.0	-	-	7.7	5.3	3.4				B9A	39
6GV6/ECL85	AF triode & output pentode	6.3	0.875	p170 t100	41.0 10.0	170	2.7	15.0 0.85	25.0 11.0	7.5 5.5	4.0	3.4		B9A	66
6GW8/ECL86	AF triode & output pentode	6.3	0.66	p250 t250	36.0 1.2	250	6.0	7.0 1.9	48.0 62.0	10.0 1.6	5.2	5.7	135	B9A	76
6H6-G/-GT	Double diode	6.3	0.30	150	4.0	-	-	-	-	-				IO	53	1937
6J5-G/-GT	General-purpose triode	6.3	0.30	250	9.0	-	-	8.0	7.7	2.60				IO	20	1940
6J6	Double triode	6.3	0.45	100	8.5	-	-	0.85	7.1	5.3				B7G	17
6J7-G/-GT	RF pentode	6.3	0.30	250	2.0	100	0.5	3.0	1.5M	1.25				IO+tc	8	1937
6JX8/ECH84	Triode heptode FC	6.3	0.30	135	1.7	14	0.9	0		2.2				B9A	77
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
6K5-G	High-μ triode	6.3	0.30	250	1.1	-	-	3.0	50.0	1.40				IO+tc	19	1940
6K6-G	Output pentode	6.3	0.40	315	23.5	285	4.0	21.0	75.0	2.10	9.0	4.5	700	IO	36
6K7EG	VM RF pentode	6.3	0.30	250	10.5	125	2.6	3.0	700.0	1.40			200	IO+tc	8	1940
6K7-G/-GT	VM RF pentode	6.3	0.30	250	10.5	125	2.6	3/52	600.0	1.65			220	IO+tc	8	1938
6K8-G/-GT	Triode hexode FC	6.3	0.30	h250 t100	2.5 3.8	100 -	6.0 -	3/30	600.0	0.36⅄			300	IO+tc	4	1940
6L6-G	Beam tetrode Class AB1 push-pull	6.3	0.90	350 360	54.0 88.0	250 270	2.5 5.0	18.0 22.5	33.0	5.20	4.2 9.0	11.0 24.0	125 250	IO	36	1938
6L7-G	Heptode: as mixer as amplifier	6.3	0.30	250 250	3.3 5.3	150 100	9.2 6.5	6/45 3.0	1M 600.0	0.35⅄ 1.10				IO+tc	2	1937
6N6-G	Triode/direct coupled output triode	6.3	0.80	t300 ot300	9.0 42.0	- -	- -	0 int. to k	24.0	2.40	7.0	4.0		IO	23	1937
6N7-G/-GT	Class B double triode	6.3	0.80	300	35/70	-	-	0	23.0	1.60	8.0	10.0		IO	22	1940
6N8/EBF89	Double diode VM pentode	6.3	0.30	250	5.0	85	1.75	2.0	1.4M	2.2			300	B9A	12
6P8-G	Triode hexode FC	6.3	0.80	h250 t100	2.2 2.3	80	3.0	3.0	700.0	0.65⅄			200	IO+tc	4	1938
6Q7-G/-GT	Double diode triode	6.3	0.30	250	1.0	-	-	3.0	58.0	1.20				IO+tc	29	1937
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
6R7-G	Double diode triode	6.3	0.30	250	9.5	-	-	9.0	8.5	1.90				IO+tc	29	1938
6SA7	Heptode FC	6.3	0.30	250	3.5	100	8.5	0	1M	0.55⅄				IO	6
6SC7	Double triode	6.3	0.30	250	2.0	-	-	2.0	53.0	1.30				IO	25
6SG7	Semi-VM RF pentode	6.3	0.3	250	9.2	150	3.4	2.5/17.5	1M	4.00				IO	14
6SH7	RF pentode	6.3	0.30	250	10.8	150	4.1	1.0	900.0	4.90				IO	14
6SJ7	RF pentode	6.3	0.30	250	3.0	100	0.8	3.0	1M	1.60				IO	10
6SK7	VM RF pentode	6.3	0.30	250	9.2	100	2.6	3.0	800.0	2.00				IO	10
6SL7-GT	High-μ double triode	6.3	0.30	250	2.3	-	-	2.0	44.0	1.60				IO	26
6SN7-GT	Low-μ double triode	6.3	0.60	250	9.0	-	-	8.0	7.7	2.60			1,100	IO	26
6SQ7	Double diode triode	6.3	0.30	250	0.9	-	-	2.0	91.0	1.10			2,500	IO	31
6T8	Triple diode triode	6.3	0.45	250	1.0	-	-	3.0	58.0	1.20				B9A	2
6U7-G	VM RF pentode	6.3	0.30	250	8.2	100	2.0	3/50	800.0	1.60			330	IO+tc	8	1937
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
6U8/ECF82	Triode pentode FC	6.3	0.45	mix170 osc100	6.6 7.0	170	2.5		400.0	0.4⅄				B9A	25
6V6-G/-GT	Beam tetrode Class AB1 PP	6.3	0.45	250 285	45.0 70.0	250 285	4.5 4.5	12.5 19.0	52.0	4.10	5.0 8.0	4.5 14.0	240 250	IO	36	1938
7A2**	Output pentode	4.0	1.20	250	34.0	250	6.5	16.5	80.0	2.35	7.0	3.5	410	B5 B7	7 24	1933
7A3	Output pentode	4.0	2.0	250	32.0	250	6.0	6.0	60.0	10.0	8.5	3.75	150	B7	24
7A7, 7A7E	VM RF pentode	6.3	0.30	250	8.6	100	2.0	3/35	800.0	2.00			300	B8G	3	1940
7A8, 7A8E	Octode FC	6.3	0.15	mix250 osc100	3.0 4.2	100	3.2	3.0	700.0	0.55⅄			300	B8G	9	1940
7AN7/PCC84	VHF double triode	7.0	0.30	90	12.0			1.5	4.0	6.0				B9A	28
7B5E	Output pentode	6.3	0.40	250	32.0	250	5.5	18.0	68.0	2.20	7.6	3.4	500	B8G	10	1940
7B6	Double diode triode	6.3	0.30	250	1.0			2.0	110.0	0.90			2,000	B8G	2	1940
7B7, 7B7E	VM RF pentode	6.3	0.15	250	8.5	100	2.0	3/40	700.0	1.70			300	B8G	3	1940
7B8, 7B8E	Heptode FC	6.3	0.30	mix250 osc100	3.5 4.2	100	3.2	3.0	360.0	0.55⅄			300	B8G	9	1940
7C5	Output beam tetrode	6.3	0.45	250	45.0	250	4.5	12.5	52.0	4.10	5.0	4.5	240	B8G	10	1940
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
7C6	Double diode triode	6.3	0.15	250	1.5			1.0	100.0	1.00			1,000	B8G	2	1940
7C7, 7C7E	RF pentode	6.3	0.15	250	2.0	100	0.50	3.0	2M	1.30			1,200	B8G	3	1940
7CF7/PCC89	VM double triode	7.2	0.30	90.0	15.0			1.2/8	2.9	12.3				B9A	28
7D3	Output pentode	40.0	0.20	160	33.0	120	6.5	20.0	42.0	2.40	5.0	2.2	440	B7	24	1935
7D5	Output pentode	13.0	0.315	250	34.0	250	6.5	16.5	80.0	2.35	7.0	3.5	410	B7	24	1938
7D6	Output pentode	40.0	0.20	250	32.0	250	6.0	6.0	60.0	10.00	8.5	3.75	150	B7	24	1935
7D7	Output pentode	6.3	0.40	250	32.0	250		18.0		2.3	7.6	3.4	500	B7	24
7D8	Output pentode	13.0	0.65	250	32.0	250	6.0	6.0	60.0	10.00	8.5	3.75	150	B7	24	1935
7D9 = 6AM5	Output pentode	6.3	0.20	250	16.0	250	2.40	13.5	150.0	2.6	16.0	1.4	680	B7G	25
7D10 = 6CH6	Video output pentode	6.3	0.75	250	40.0	250	6.0	4.5	50.0	11.0	1.5	12.5		B9A	19
7D11	Output pentode	6.3	1.80	250		250		10.0	12.0	11.0				IO	36
7DJ8/PCC88	Double triode	6.3	0.30	90	15.0			1.3	2.65	12.5				B9A	39
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
7ES8/PCC189	Double triode	6.3	0.30	90	15.0			1.4	2.5	12.5				B9A	39
7F7	Double triode	6.3	0.30	250	2.3			2.0	44.0	1.60				B8G	14
7GV7/PCF805	VHF triode pentode FC	7.4	0.30	mix155 osc77	7.7 7.8	135		3.0	400.0	4.7				B9A	72
7H7	VM RF pentode	6.3	0.30	250	9.5	250	3.5	2.5/30	800.0	3.80			200	B8G	3	1947
7K7	Double diode triode	6.3	0.30	250	2.30			2.0	44.0	1.60			1,000	B8G	21
7N7	Low-μ double triode	6.3	0.60	250	9.0			8.0	7.7	2.60			1,100	B8G	14
7Q7	Heptode FC	6.3	0.30	250	3.5	100	8.5	2.0	1M	0.45⅄				B8G	14
7R7	Double diode, semi-VM RF pentode	6.3	0.30	250	5.7	100	1.7	1/20	1M	3.20			150	B8G	13
7S7	Triode heptode FC	6.3	0.30	h250 t150	1.9 5.0	100	3.0	2/21	1.25M	0.53⅄			200	B8G	8
8A1**	RF pentode	4.0	1.00	200	3.5	80	0.7	1.5	600.0	4.00			200	B5+tc B7+tc	2 5	1933 1937
8D2	RF pentode	13.0	0.20	250	2.0	100	0.50	3.0	1.1M	1.25			1,000	B7+tc	6	1934
8D3/6AM6/EF91	6064 (SQ) High-slope RF pentode	6.3	0.30	250	10.0	250	2.6	2.0	1.0M	7.50			160	B7G	21
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
8D4	RF pentode	6.3	0.20	250	2.9	100	0.85	2.0	2.4M	1.85				IO	8
8D5, 6059 (SQ)	VM RF pentode	6.3	0.15	250	2.1	100	0.60	3.0	2.3M	1.25				B9A	35
8D6	VHF pentode	6.3	0.30	250	9.5	250				8.50			180	B9A	10
8D7/6BS7	Low microphony AF pentode	6.3	0.15	250	2.1	100	0.6	3.0	2.3M	1.25				B9A	20
8D8	Low microphony AF pentode	6.3	0.15	250	3.0	140	0.60	2.0	2.5M	1.90				B9A	23
8HG8/PCF86	Triode pentode FC	8.0	0.30	mix190 osc120	8.5 6.0	140	2.7	1.5	350.0	4.5				B9A	64
9A1**	VM RF pentode	4.0	1.00	200	5.0	80	1.0	1.5/30	600.0	4.25			220	B5+tc B7+tc	2 5	1933 1937
9A3**	VM RF pentode	4.0	0.65	250	10.0	125	3.0	2.0	600.0	1.80				B7+tc	6	1934
9A8/PCF80	Triode pentode FC	9.0	0.30	p170 t100	6.3 14.0	170	2.5		720	2.05⅄				B9A	25
9AQ8/PCC85	VHF double triode	9.0	0.30	200	10.0			2.4	7.7	6.00				B9A	39
9BW6 (See 6V6)	Output beam tetrode	9.0	0.30	315	34.0	225	2.2	13.0	77.0	3.75	8.5	5.5	360	B9A	19
9D2	VM RF pentode	13.0	0.20	250	10.5	125	2.6	3/52	600.0	1.65			220	B7+tc	6	1934
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
9D6 (6065 SQ)	VM RF pentode	6.3	0.20	250	8.0	200	2.1	2.5/28	1M	2.50			250	B7G	21	1947
9D7	VM RF pentode	6.3	0.30	250	10.0	100	3.3		750.0	8.40			100	B9A	10
9U8/PCF82	Triode pentode FC	9.5	0.30	mix170 osc100	6.6 7.0	170	2.5	2.0	400.0 4.0	0.4⅄ 5.0				B9A	25
10D1	Double diode	13.0	0.20	50	1.0									B5	3	1936
11A2**	Double diode triode	4.0	1.00	200	3.0			2.0	18.0	2.80			600	B7+tc	7	1933
11D3	Double diode triode	13.0	0.20	250	0.4			2.0	90.0	1.10			5,000	B7+tc	7	1934
11D5	Double diode triode	13.0	0.15	250	3.8			3.0	26.7	1.50			750	B7+tc	7
12A6	Output beam tetrode	12.6	0.15	250	30.0	250	3.5	12.5	70.0	3.0	7.5	3.4	350	IO	36
12A7	Output pentode & half-wave rectifier	12.6	0.30	p135 r125	9.0 30.0	135 -	2.5 -	13.5		1.00	13.5	0.55		USS7+tc	3	1940
12AC6	VM RF pentode	12.6	0.15	12.6	0.55	12.6	0.2	0	500.0	0.73				B7G	16
12AD6	Heptode FC	12.6	0.15	12.6	0.45	12.6	1.6	0	1M	0.26⅄				B7G	29
12AE6	Double diode triode	12.6	0.15	12.6	0.75			0	15.0	1.0				B7G	19
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
12AH8	Triode heptode FC	12.6	0.15*	h250 t100	2.6 5.7	100 -	4.4 -	3.0	15M	0.55⅄			220	B9A	9
12AT6/HBC90	Double diode triode	12.6	0.15	250	1.00	-	-	3.0	58.0	1.20				B7G	19
12AT7 (6060 SQ)	Double triode	12.6	0.15*	250	10.0	-	-	2.0	10.0	5.50				B9A	1
12AU6/HF94	RF pentode	12.6	0.15	250	10.8	150	4.3	1.0	1M	5.20			68	B7G	16
12AU7 (6067 SQ)	Low-μ double triode	12.6	0.15*	250	10.5	-	-	8.5	7.7	2.20				B9A	1
12AV6/HBC91	Double diode triode	12.6	0.15	250	1.20	-	-	2.0	62.5	1.60				B7G	19
12AX7 (6057 SQ)	High-μ double triode	12.6	0.15*	250	1.20			2.0	62.5	1.60			68	B9A	1
12BA6	VM RF pentode	12.6	0.15	250	11.0	100	4.2	1/21	1.5M	4.40				B7G	16
12BE6	Heptode FC	12.6	0.15	250	3.0	100	7.1	1.5/30	1M	0.475⅄				B7G	29
12BH7	Low-μ double triode	12.6	0.30*	250	11.5			10.5	5.5	3.10				B9A	1
12BL6	VM RF pentode	12.6	0.15	12.6	1.4	12.6	0.55	0	500.0	1.35				B7G	16
12C8-GT	Double diode & AF pentode	12.6	0.15	250	9.0	125	2.3	3.0	600.0	1.12			250	IO+tc	15
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
12H6	Double diode	12.6	0.15	117	8.0	-	-	-	-	-				IO	53
12J5-GT	General-purpose triode	12.6	0.15	250	9.0	-	-	8.0	7.7	2.60				IO	20
12J7-GT	RF pentode	12.6	0.15	250	2.0	100	0.50	3.0	1.5M	1.25			1,000	IO+tc	8
12K5	Output tetrode	12.6	0.45	12.6	8.0	12.6		2.0	0.8	7.00				B7G	69
12K7-GT	VM RF pentode	12.6	0.15	250	9.2	100	2.6	3/35	800.0	2.00				IO	8
12K8-GT	Triode hexode FC	12.6	0.15	h250 t100	2.5 3.8	100	6.0	3/30	600.0	0.36⅄			300	IO+tc	4
12Q7-GT	Double diode triode	12.6	0.15	250	1.1	-	-	3.0	58.0	1.20				IO+tc	29
12SJ7	RF pentode	12.6	0.15	250	3.0	100	0.80	3.0	1.5M	1.65			1,000	IO	10
12SK7	VM RF pentode	12.6	0.15	250	9.2	100	2.4	3/35	800.0	2.00			220	IO	10
12SL7, 12SL7-GT	High-μ double triode	12.6	0.15	250	2.3	-	-	2.0	44.0	1.60				IO	26
12SN7, 12SN7-GT	Low-μ double triode	12.6	0.30	250	9.0	-	-	8.0	7.7	2.60			1,100	IO	26
12SQ7	Double diode triode	12.6	0.15	250	0.9	-	-	2.0	91.0	1.10				IO	31
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
12SR7	Double diode triode	12.6	0.15	250	6.5	-	-	9.0	8.5	1.90	10.0	0.30		IO	31
13D1 = 25SN7GT	Double triode	25.0	0.15	250	9.0	-	-	8.0	7.7	2.60				IO	26
13D2	Double triode	6.3	0.60	250	9.0	-	-	8.0	7.7	2.60			1,100	IO	26
13D3 (6158 SQ)	Double triode	6.3	0.60*	250	6.0	-	-	4.6	14.0	2.30				B9A	1
13D7	Double triode	6.3	0.30	250	1.3	-	-	1.5		2.40				B9A	86
13D8	AF double triode	6.3	0.30*	250	10.5	-	-	8.5	7.7	2.2				B9A	1
14B6	Double diode triode	12.6	0.15	250	0.9	-	-	2.0	91.0	1.10				B8G	2
14GW8/PCL86	AF triode & output pentode	13.3	0.30	p230 t230	39.0 1.2	230	6.5	5.7	45.0	10.5	5.1	4.1	125	B9A	76
14H7	VM RF pentode	12.6	0.15	250	9.5	250	3.5	2.5/30	800.0	3.80			200	B8G	3
14R7	Double diode pentode	12.6	0.15	250	5.7	100	1.7	1/20	1M	3.20			150	B8G	13
14S7	Triode heptode FC	12.6	0.15	h250 t150	1.9 5.0	100	3.0	3/21	1.25M	0.53⅄			200	B8G	8
15, 15E	RF pentode (IH battery)	2.0	0.22	135	1.85	67.5	0.3	1.5	800.0	0.70				USS5+tc	2	1940
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
15A2**	Heptode FC See also 6A8G	4.0	0.65	mix250 osc200	3.5 4.0	100 -	2.7 -	3.0	360.0	0.55⅄				B7+tc	2	1934
15A6/PL83	Video output pentode	15.0	0.30	170	36.0	170	5.0	2.3	100.0	10.0				B9A	14
15CW5/PL84	Output pentode	15.0	0.30	170	70.0	170	3.5	12.5	26.0	11.0	2.4	5.6	170	B9A	16
15D1	See 15A2	13.0	0.20											B7+tc	2	1934
15D2	See 15A2	13.0	0.15											B7+tc	2
15DQ8/PCL84	TV triode & pentode	15.0	0.30	p220 t200	18.0 3.0	220	3.0	3.3 1.7	150.0 16.2	10.0 4.0				B9A	53
16A5/PL82	Output pentode	16.5	0.30	170	53.0	170	10.0	10.4	20.0	9.0	3.0	4.0	165	B9A	16
16A8/PCL82	AF triode & output pentode	16.0	0.30	p200 t100	35.0 3.5	200	8.0	16.0 0	20.0 32.0	6.4 2.2	5.6	3.5		B9A	37
16D1	Double output triode	13.0	0.40	300	2x45	-	-				7.2	5.2		B7	41	1936
18	Output pentode	14.0	0.30	250	34.0	250	6.5	16.5	80.0	2.50	7.0	3.2	410	USM6	8	1938
18D2	VHF triode & pentode	9.45	0.30	t150 p170	12.5 10.0	125	3.5	1.8 1.65		10.0 10.0				B9A	92
18D3	Triode & pentode	6.3	0.45	p150 t150	7.0 13.5	150		2.0 1.5		11.0 7.2				B9A	25
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
18E	Output pentode	14.0	0.30	250	32.0	250	6.2	16.5	80.0	2.25	7.0	3.5	410	USM6	8	1940
18GV8/PCL85	AF triode & output pentode	18.0	0.30	p170 t100	41.0 10.0	170	2.7	15.0 0.85	25.0 11.0	7.5 5.5	4.0	4.4		B9A	66
19	Class B double triode	2.0*	0.26	135 135	10.0 3.4	-	-	0 3.0			10.0 10.0	2.1 1.9		USS6	7	1940
19AQ5	Output beam tetrode	19.0	0.15	250	45.0	250	4.5	12.5	52.0	4.10	5.0	4.5	240	B7G	27
19BG6-G	Line t/b output tetrode	19.0	0.30	300	60.0	250	4.0	18.0	30.0	6.00				IO	39
19T8	Triple diode triode	19.0	0.15	250	1.0	-	-	3.0	58.0	1.2				B9A	2
20A1	Triode hexode FC	4.0	1.20	h250 t100	2.2 2.3	80	3.0	1.5	700.0	0.65⅄				B7+tc	3	1938
20D2	Triode hexode FC	13.0	0.15	h250 t100	2.5 3.8	100 -	6.0 -	3.0	600.0	0.36⅄			300	B7+tc	3	1940
20D3 = 12AH8	Triode heptode FC	12.6	0.15*	h250 t100	2.6 5.7	100 -	4.4 -	3.0	15M	0.55⅄			220	B9A	9
20D4	Triode heptode FC	6.3	0.30	mix250 osc100	3.0 5.0	100	0.9	2.0	900.0	0.85⅄				B9A	52
21A6/PL81	Line t/b output pentode	21.5	0.30	170	45.0	170	3.0	22.0	10.0	6.2				B9A	17
24A, 24E	RF tetrode	2.5	1.75	250	4.0	90	1.7	3.0	600.0	1.00			500	USM5+tc	2	1938
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
25A6-G	Output pentode	25.0	0.30	160	33.0	120	6.5	18.0	42.0	2.40	5.0	2.2	440	IO	36	1937
25A7-G	Output pentode and HW rectifier	25.0	0.30	p100 r125	20.5 75.0	100	4.0	15.0	50.0	1.80	4.5	0.77	550	IO	99
25B8-GT	Triode and RF pentode	25.0	0.15	t100 p100	0.6 7.6	- 100	- 2.0	1.0 3.0	75.0 200.0	1.50 2.00				IO	16
25E5/PL36	Line t/b output pentode	25.0	0.30	100	100.0	100	7.0	8.2	5.0	14.0				IO+tc	129
25E5/PL36	Line t/b output pentode	25.0	0.30	100	100.0	100	7.0	8.2	5.0	14.0				IO+tc	129
25L6-GT	Output beam tetrode	25.0	0.30	200	50.0	110	2.0	8.0	30.0	9.50	3.0	4.3	160	IO	36	1938
25SN7/13D1	Double triode	25.0	0.15	250	9.0	-	-	8.0	7.7	2.60				IO	26
27	General-purpose triode	2.5	1.75	250	5.2	-	-	21.0	9.0	1.00			4,000	USS5	1	1940
30, 30E	General-purpose triode	2.0*	0.06	135	3.0	-	-	9.0	10.3	0.90				USS4	1	1940
32E	RF pentode	2.0*	0.06	135	1.7	67.5	0.4	3.0	1M	0.60				USM4+tc	2	1940
32L7-GT	Output beam tetrode and rectifier	32.5	0.30	bt90 r125	27.0 60.0	90	2.0	7.0	17.0	4.80	2.6	1.0	220	IO	99
34E	VM RF pentode	2.0*	0.06	135	2.8	67.5	1.0	3/22.5	600.0	0.60				USM4+tc	2	1940
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
35A5	Output beam tetrode	35.0	0.15	200	41.0	110	2.0	8.0	40.0	5.90	4.5	3.3	185	B8G	10
35L6-GT	Output beam tetrode	35.0	0.15	200	41.0	110	2.0	8.0	40.0	5.90			185	IO	36
36, 36E	RF tetrode	6.3	0.30	250	3.2	90	1.7	3.0	550.0	1.10				USS5+tc	2	1938
37	General-purpose triode	6.3	0.30	250	7.5	-	-	18.0	8.4	1.10				USS5	1	1940
39/44, 39/44E	VM RF pentode	6.3	0.30	250	5.8	90	1.4	3.0	1M	1.10				USM5+tc	2	1938
41, 41E	Output pentode	6.3	0.40	250	32.0	250	5.5	18.0	68.0	2.30	8.0	3.4	500	USS6	8	1940
42, 42E	Output pentode	6.3	0.70	250	34.0	250	6.5	16.5	80.0	2.50	7.0	3.2	410	USM6	8	1937
43, 43E	Output pentode	25.0	0.30	160	33.0	120	6.5	18.0	42.0	2.4	5.0	2.2	440	USM6	8
45	Output triode	2.5*	1.50	250	36.0	-	-	50.0	1.6	2.20	3.9	1.6	1,500	USM4	1	1940
45B5/UL84	Output pentode	45.0	0.10	170	70.0	170	5.0	12.5	23.0	8.0		5.6		B9A	16
47, 47E	Output pentode	2.5*	1.75	250	31.0	250	6.0	16.5	60.0	2.50	7.0	2.7	450	USM5	3	1938
50A5	Output beam tetrode	50.0	0.15	200	50.0	110	15	8.0	35.0	8.25	3.0	4.3	160	B8G	10
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
50B5	Output beam tetrode	50.0	0.15	110	49.0	110	4.0	7.5	10.0	7.50	2.5	1.9	140	B7G	27
50BM8/UCL82	AF triode & output pentode	50.0	0.10	p200 t100	35.0 3.5	200	7.0	16.0 0	20.0 28.0	6.4 2.5	5.6	3.5	380	B9A	37
50C5	Output beam tetrode	50.0	0.15	110	49.0	110	4.0	7.5	10.0	7.50	2.5	1.9	140	B7G	42
50CD6-G	Line t/b beam tetrode	50.0	0.30	170	170.0	175		150.0						IO+tc	39
50L6-GT	Output beam tetrode	50.0	0.15	110	49.0	110	4.0	7.5	10.0	9.00	1.5	2.1	150	IO	36
56	Medium-μ triode	2.5	1.0	250	5.0	-	-	13.5	9.5	1.45				USS5	1
57	RF pentode	2.5	1.0	250	2.0	100	0.5	3.0	1.5M	1.25				USM6+t	2
58	VM RF pentode	2.5	1.0	250	8.2	100	2.0	3/50	800.0	1.60				USM6+tc	2
70L7-GT	Output beam tetrode & HW rectifier	70.0	0.15	bt110 r125	40.0 70.0	110	3.0	7.5	15.0	7.50	2.0	1.8	175	IO	43
71A	Output triode	5.0*	0.25	180	20.0	-	-	40.5	1.75	1.70	4.8	0.8		USM4b	1	1940
75	Double diode triode	6.3	0.30	250	0.9	-	-	2.0	91.0	1.10				USS6+tc	4	1937
76	General-purpose triode	6.3	0.30	250	5.0	-	-	13.5	9.5	1.45				USS5	1	1940
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
77, 77E	RF pentode	6.3	0.30	250	2.3	100	0.5	3.0	1.5M	1.20				USS6+tc	2	1938
78, 78E	VM RF pentode	6.3	0.30	250	7.0	100	1.7	3/42	800.0	1.45			300	USS6+tc	2	1937
79	Class B double triode	6.3	0.60	250	10.6	-	-				14.0	8.0		USS6+tc	6	1940
85	Double diode triode	6.3	0.30	250	8.0	-	-	20.0	7.5	1.10				USS6+tc	4	1940
117L7-GT 117M7-GT	Output beam tetrode & HW rectifier	117.0	0.09	bt105 r117	43.0 75.0	105	4.0	5.3	17.0	5.30	4.0	0.85	110	IO	44
117N7-GT	Output beam tetrode & HW rectifier	117.0	0.09	bt100 r117	51.0 75.0	100	5.0	6.0	16.0	7.00	3.0	1.20	110	IO	44
117P7-GT	Output beam tetrode & HW rectifier	117.0	0.09	bt105 r117	43.0 75.0	105	4.0	5.2	17.0	5.30	4.0	0.85	110	IO	44
807	Power beam tetrode Class AB1 PP Class AB2 PP	6.3	0.90	500 600 600	50.0 80/150 60/200	200 300 300	1.6 1.5/17.5 5/21	14.5 27.5 30.0	39.0	5.70	6.0 10.0 6.4	11.5 47.0 80.0	280 None None	USM5+tc	6
2101	Output pentode	2.0*	0.12	135	8.0	135	2.6	4.5	200.0	1.70	16.0	0.45		USS5	3	1940
2102	Double diode triode	2.0*	0.12	135	2.1			1.5	23.0	1.3				USS6	3
2103	Double output pentode	2.0*	0.26	135	4.0	135	1.2	7.5		1.60	24.0	0.6		USS7	8	1940
2151	Output pentode Class A push-pull	14.0	0.30	250 250	47.0 94.0	250 250	11.6 23.0	31.0 31.0	50.0	2.40	5.0 7.0	5.0 12.0	500 250	USS6	8	1940
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
5654 SQ	VHF pentode	6.3	0.175	180	7.7	120	2.4	1.8	500.0	5.1				B7G	14
5726 SQ	See 6AL5													-	-
5749 SQ	See 6BA6													-	-
5750 SQ	See 6BE6													-	-
5763	VHF beam power amp.	6.0	0.75	250	45.0	250	4.7	7.25	27.0	7.0				B9A	11
5963 SQ	Double triode	6.3	0.30	67.5	8.5	-	-	0	6.6	3.2				B9A	1
5965 SQ	Double triode	6.3	0.45	150	8.2	-	-	0		6.50			220	B9A	1
6057 SQ	See12AX7													-	-
6058 SQ	See 6AL5													-	-
6059 SQ	See 6BR7								1M	2.45				-	-
6060 SQ	See 12AT7													-	-
6061 SQ	See 6BW6													-	-
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
6062 SQ	See 5763													-	-
6064 SQ	See 6AM5/8D3													-	-
6065 SQ	See 9D6													-	-
6067SQ	See 12AU7													-	-
6080	Double power triode	6.3	2.5	100	125.0	-	-		0.28	7.0			250	IO	145
6100	VHF power triode	6.3	0.15	250	10.5	-	-	8.5/25	7.7	2.20				B7G	15
6132 SQ	See 6CH6													-	-
6146	RF power pentode	6.3	1.25	200	100.0	200		29.5		7.0				IO	134
6158 SQ	See 13D3													-	-
6267/EF86	Low-noise AF pentode	6.3	0.20	250	3.0	140	0.6	2.0	2.5M	1.8				B9A	23
6516 SQ	See 6AM6													-	-
6688 SQ	Beam tetrode wide-band amplifier	6.3	0.30	189	13.0	150	3.3	1.3	9.0	16.5				B9A	45
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
6870 SQ	RF & video pentode	6.3	0.60*	250	25.0	250	3.5	3.4	230.0	8.5				B9A	44
7032 SQ	Gating heptode	6.3	0.30	220	4.5	100	7.2	g1=2.0 g2 = 0		1.80 0.50				B7G	29
7492 SQ	See 12AT7													-	-
7498 SQ	See 6AM5													-	-
HF94/12AU6	RF pentode	12.6	0.15	250	10.8	150	4.3	1.0	1M	5.20				B7G	16
HLA2**	General-purpose triode	4.0	1.00	200	6.0	-	-	2.5	9.0	5.50			400	B5	1	1933
PA1**	Output triode (IH)	4.0	1.00	200	40.0	-	-	9.0	1.05	12.00	4.0	1.8	260	B5	1	1932
PenA1**	Output pentode	4.0*	1.00	250	32.0	250	6.5	16.5		3.00	8.0	2.7	450	B5	6	1932
PenB1**	Output pentode	2.0*	0.20	150	8.0	150	1.8	4.5			18.0			B5	6	1935

** These Brimar valves were previously Micromesh types

Rectifiers
Type	Class	Cathode			Va	DC Ia	PIV	DC Vo	Base		Year
		Type	Volts	Amps	Max RMS	mA	Volts	Volts	Type	Ref	Year
Brimar
Note: for Loctal B8G read B8B, USS & USM = UX, Y8A = Footless
1D5	HW	IH	40.0	0.20	250	100	700		B5	8	1935
1D6	HW	IH	25.0	0.30	250	100			USM6	14
1T2 See R16
5R4-GY	FW	DH	5.0	2.00	650	250	2800		IO	60
5U4-G	FW	DH	5.0	3.00	450	225	1550		IO	60	1940
5V4-G	FW	IH	5.0	2.00	375	175	1400		IO	62	1940
5X4-G	FW	DH	5.0	3.00	450	225	1550		IO	61	1940
5Y3-G/-GT	FW	DH	5.0	2.00	350	125	1400		IO	60	1940
5Y4-G	FW	DH	5.0	2.00	350	125	1400		IO	61	1940
5Z3	FW	DH	5.0	2.00	450	225	1550		US4	3	1940
5Z4-G	FW	IH	5.0	2.00	350	125	1400		IO	62	1940
6U4-GT (Efficiency diode)	HW	IH	6.3	1.20		138	3850		IO	109
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
6X4, 6063 (SQ)	FW	IH	6.3	0.60	325	70	1250		B7G	31
6X5-G/-GT	FW	IH	6.3	0.60	325	70	1250		IO	54	1940
6Z4	FW	IH	6.3	0.50	450	60	1250		USM5	5
6ZY5G	FW	IH	6.3	0.30	325	40	1250		IO	54	1940
7Y4	FW	IH	6.3	0.50	325	70	1250		B8G	1	1940
7Z4	FW	IH	6.3	0.90	325	100			B8G	1
12Z3	HW	IH	12.6	0.30	235	55	700		USS4	5	1940
25RE	FW	IH	25.0	0.30	250	85			USS6	9	1940
25U4-GT (Efficiency diode)	HW	IH	25.0	0.30		138	3850		IO	109
17Z3	ED	IH	17.0	0.30		150	4500		B9A+tc	34
25Y5	Vd	IH	25.0	0.30	235	75	700		USS6	9	1940
25Z4-G	HW	IH	25.0	0.30	250	100			IO	111
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
25Z5	Vd	IH	25.0	0.30	235	150			USS6	9	1940
25Z6-G	Vd	IH	25.0	0.30	117	75			IO	53
35RE	FW	IH	35.0	0.30	250	100			USS6	9	1940
35W4	HW	IH	35.0	0.15	117	100			B7G	33
35Z3	HW	IH	35.0	0.15	250	100			B8G	16
35Z4-GT	HW	IH	35.0	0.15	250	100			IO	55
80	FW	DH	5.0	2.00	350	125			USM4	3
80s	FW	IH	5.0	2.00	350	125			USM4	21
83	FW/MV	DH	5.0	3.00	450	225			USM4	3
83-V	FW	IH	5.0	2.00	375	175			USM4	22
84/6Z4	FW	IH	6.3	0.50	325	60	1250		USM5	5	1940
6063 (SQ) See 6X4
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
OZ4, 0Z4	FW	Cold			300	75	1000	300	IO	57	1940
R1	FW	IH	4.0	1.00	250	60			B4	14	1933
R2	FW	IH	4.0	2.25	350	120			B4	14	1933
R3	FW	IH	4.0	2.25	500	120			B4	14	1933
R10	EHT	IH	4.0	1.50	3,500	5.0	12,000		B7G+tc	22
R11	HW	DH	4.0	1.10	5,000	50			B4	6
R12	EHT	IH	6.3	0.09		3.0	17,000		Wires
R14	2xHW	IH	52.0	0.30	240	400			IO	52
R16/IT2	EHT	DH	1.4	0.14		2.0	15,000		Wires
R17	HW	IH	6.3	0.80	350				B9A+tc	30
R18, 6443 (SQ)	HW	IH	6.3	1.10	625	125			B9A+tc	30
R19/1X2B	EHT	DH	1.25	0.20		2.0	25,000		B9A+tc	32
Click for pin-out: B4 - UX4 - B5 - Ct5 - UX5 - UX6 - B7 - B7G - UX7 - B8A - B8B - MO - IO - Ct8 - Footless - B9 - B9A - B9G - B10B - Others
R20	EHT	IH	2.0	0.35		0.8	22,000		B9A+tc	50

Tuning Indicators
Type	Heater		Anode		Target		-Vg1	Shadow	Base		Year
	Volts	Amps	Volts	mA	Volts	mA	max/min	angle x°	Type	Ref	Year
Brimar
Note: for Loctal B8G read B8B, USS & USM = UX, Y8A = Footless
6U5/6G5	6.3	0.30	250	0.24	250	4.0	22/0	0/90	USM6	11
6U5-G	6.3	0.30	250	0.24	250	4.0	22/0	0/90	IO	46
12U5	12.6	0.15	250	0.24	250	4.0	22/0	0/90	IO	46
1629	12.6	0.15	250	0.40	250	4.0	8/0	0	IO	46
PM84	4.5	0.30			170	0.6-1.05	15/0		B9A	56

Thyratrons

Type

Heater

Anode

Control

fmax

Gas

Base

Year

Volts

Amps

Pk Volts

Pk mA

Ratio

KHz

Type

Ref

Year

Brimar

Note: for Loctal B8G read B8B, USS & USM = UX, Y8A = Footless

2D21

6.3

0.60

650

500

250 B7G

15

Barretters

Type

Current

Voltage

Base

Year

Amps

Min-Max

Type

Ref

Year

Brimar

Note: for Loctal B8G read B8B, USS & USM = UX, Y8A = Footless

D15

0.15 90-140

IO

75

Voltage Stabilisers
Type	AV Stab	Striking	Current mA		Regulation	Base
	Volts	Voltage	Min	Max	Volts	Type	Ref
Brimar
Note: for Loctal B8G read B8B, USS & USM = UX, Y8A = Footless
6BK4 (EHT 25kV max)				1.5		IO	130
OA2, 0A2	150	185	5	30	6.0	B7G	28
OB2	108	133	5	30	4.0	B7G	28
OC2	75	115	5	30	4.5	B7G	28
VR75/30	75	100	5	40	6.5	IO	74
VR105/30	105	135	5	40	4.0	IO	74
VR150/30	150	180	5	40	5.5	IO	74

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rvd-045

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Radio Valve Data: 1915-1960

Keith R Thrower OBE, The Valve Museum, April, 2022.

Extras ▼

Help information: Abbreviations - Explanations - Notes.

Post-1925 amplifying valves, frequency changersand signal diodes

Type

Description

Filament

Anode

Auxillary Grid

Grid

ra

gm/go

RL

Po

Rk

Base (1)Pin-out details for non-exhibits can be found with the base details.

Year

Volts

Amps

Volts

mA

Volts

mA

-V

kΩ

mA/V

kΩ

Watts

Ω

Type

Ref

Brimar

Note: for Loctal B8G read B8B, USS & USM = UX, Y8A = Footless

1A4E

VM RF pentode

2.0*

0.06

135

2.2

67.5

0.9

3.0

1M

0.65

USS4+tc

2

1940

1A5EG, 1A5G/GT

Output pentode

1.4*

0.05

90

4.0

90

0.8

4.5

300.0

0.85

25.0

0.117

IO

78

1940

1A6

Heptode FC

2.0*

0.06

mix135osc135

1.82.0

67.5-

2.1-

3.0

400.020.0

0.27⅄

USS6+tc

1

1940

1A7EG,1A7-G/-GT

Post-1925 amplifying valves, frequency changers
and signal diodes

r_a

g_m/g_o

R_L

P_o

R_k

Base^{(1)Pin-out details for non-exhibits can be found with the base details.}

mix135
osc135

1.8
2.0

67.5
-

2.1
-

400.0
20.0

1A7EG,
1A7-G/-GT

mix90
osc90

0.55
1.2

90
-

mix85
osc85

0
0

mix85
osc30

0.7
1.6